#include <stdio.h>
int main(int argc,const char * argv[])
{
      char a ='a';
      printf("a =%d\n", a);
      printf("a =%c\n",a);
    
      char str[12]="nihao";
      printf("%s\n",str);
      
      char str1[12]="ni\0hao";
      printf("%s\n",str1);
      char *p ="hello";
      printf("%s\n",p);
      return 0;

}